package com.sunlands.zlcx.usercenter.serialize;

import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.databind.JsonSerializer;
import com.fasterxml.jackson.databind.SerializerProvider;

import java.io.IOException;
import java.text.DecimalFormat;

public class DoubleSerialize extends JsonSerializer<Double> {

    private DecimalFormat df = new DecimalFormat("##.00");

    @Override
    public void serialize(Double value, JsonGenerator gen, SerializerProvider serializers)
            throws IOException {
        if (Math.round(value) - value == 0) {
            gen.writeString(String.valueOf(value.longValue()));
        } else {
            gen.writeString(df.format(value));
        }
    }
}
